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import {convertToArrayBuffer, convertToByteArray, dT} from '../bin_utils';
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// @ts-ignore
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//import Worker from './crypto.worker.js';
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type Task = {
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taskID: number,
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task: string,
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args: any[]
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};
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class CryptoWorker {
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private webWorker: Worker | boolean = false;
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private taskID = 0;
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private awaiting: {
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[id: number]: {
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resolve: any,
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reject: any,
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taskName: string
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}
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} = {} as any;
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private pending: Array<Task> = [];
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private debug = false;
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constructor() {
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console.log(dT(), 'CW constructor');
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if(window.Worker/* && 1 == 2 */) {
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import('./crypto.worker.js').then((CryptoWebWorker: any) => {
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//console.log(CryptoWebWorker);
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var tmpWorker = new CryptoWebWorker.default();
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//var tmpWorker = new Worker();
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tmpWorker.onmessage = (e: any) => {
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if(!this.webWorker) {
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this.webWorker = tmpWorker;
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console.info(dT(), 'CW set webWorker');
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this.releasePending();
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} else {
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this.finalizeTask(e.data.taskID, e.data.result);
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}
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};
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tmpWorker.onerror = (error: any) => {
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console.error('CW error', error/* , error.stack */);
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this.webWorker = false;
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};
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});
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}
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}
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private finalizeTask(taskID: number, result: any) {
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let deferred = this.awaiting[taskID];
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if(deferred !== undefined) {
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this.debug && console.log(dT(), 'CW done', deferred.taskName, result);
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deferred.resolve(result);
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delete this.awaiting[taskID];
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}
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}
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public performTaskWorker<T>(task: string, ...args: any[]) {
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this.debug && console.log(dT(), 'CW start', task, args);
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return new Promise<T>((resolve, reject) => {
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this.awaiting[this.taskID] = {resolve, reject, taskName: task};
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let params = {
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task,
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taskID: this.taskID,
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args
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};
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//(this.webWorker as Worker).postMessage(params);
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this.pending.push(params);
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this.releasePending();
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this.taskID++;
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});
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}
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private releasePending() {
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if(this.webWorker) {
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this.pending.forEach(pending => {
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(this.webWorker as Worker).postMessage(pending);
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});
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this.pending.length = 0;
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}
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}
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public sha1Hash(bytes: number[] | ArrayBuffer | Uint8Array): Promise<Uint8Array> {
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//if(this.webWorker) {
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return this.performTaskWorker<Uint8Array>('sha1-hash', bytes);
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//}
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}
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public sha256Hash(bytes: any) {
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//if(this.webWorker) {
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return this.performTaskWorker<number[]>('sha256-hash', bytes);
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//}
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}
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public pbkdf2(buffer: Uint8Array, salt: Uint8Array, iterations: number) {
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//if(this.webWorker) {
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return this.performTaskWorker<ArrayBuffer>('pbkdf2', buffer, salt, iterations);
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//}
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}
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public aesEncrypt(bytes: any, keyBytes: any, ivBytes: any) {
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//if(this.webWorker) {
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return this.performTaskWorker<ArrayBuffer>('aes-encrypt', convertToArrayBuffer(bytes),
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convertToArrayBuffer(keyBytes), convertToArrayBuffer(ivBytes));
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//}
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}
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public aesDecrypt(encryptedBytes: any, keyBytes: any, ivBytes: any): Promise<ArrayBuffer> {
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//if(this.webWorker) {
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return this.performTaskWorker<ArrayBuffer>('aes-decrypt',
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encryptedBytes, keyBytes, ivBytes)
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.then(bytes => convertToArrayBuffer(bytes));
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//}
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}
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public rsaEncrypt(publicKey: {modulus: string, exponent: string}, bytes: any): Promise<number[]> {
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return this.performTaskWorker<number[]>('rsa-encrypt', publicKey, bytes);
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}
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public factorize(bytes: any) {
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bytes = convertToByteArray(bytes);
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//if(this.webWorker) {
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return this.performTaskWorker<[number[], number[], number]>('factorize', bytes);
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//}
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}
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public modPow(x: any, y: any, m: any) {
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//if(this.webWorker) {
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return this.performTaskWorker<number[]>('mod-pow', x, y, m);
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//}
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}
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public gzipUncompress<T>(bytes: ArrayBuffer, toString?: boolean) {
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//if(this.webWorker) {
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return this.performTaskWorker<T>('unzip', bytes, toString);
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//}
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}
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}
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const cryptoWorker = new CryptoWorker();
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(window as any).CryptoWorker = cryptoWorker;
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export default cryptoWorker;
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